Improvement in combined plows and scrapers for roads



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Cofnbined Plow and Scraper for Roads. No. 108,176. 1 Patented oct n, 1870 2 Sheets-Sheet 2. T. B. PARKER.

Combined Plow and Scraper for Roads.

No. 108,176. Patented 0a. 11, 1870.

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THOMAS-B. PARKER, OF LINESVILLE, PENNSYLVANIA.

' Letters'Patent No. 108,176, dated October 11, 1870.

IMPliOVEMENT IN COMBINED PLOWS AND SCRAPERS FOR ROADS.

The Schedule referred to in these Letters Patent and making part of the same .To all whom it may concern Be it known that I, Tnowms B. PARKER, of Lines ville, in the county of Crawford, State of Pennsyl- Vania; have inventeda new and improved Combined Plow and Scraper for working roads and grading grounds; and I do hereby declare that the following is a full and exact description of the same, reference being bad to the accompanying drawing and the lettersof reference marked thereon.

Figure l is a top view of. my plow and, scraper.

B B are two wagon or cart-wheels, on which the machine rests.- 4 1 O the inside of the hub of these wheels is a bevel gear-wheel, L.

K is a larger bevel gear-wheel on a short shaft (see Figure 6,) for a view of the same detached from the machine.

This bevel gear may be thrown .into and out of gear by the-lever O, which,for that purpose, is moved tot-he right or left, and, at the same time, there is a ratchet-wheel, N, and a sliding pawl or catch, V, so constructed that, by raising or lowering the lever O, the cogged wheel M on the same shaft with K may be revolved.

A A are two plows hung on alrame, (see Figure 2,) where the same is detached from the machine to better show its construction.

This frame has two side bars, w 10, which are constructed so that the wheels B B shall run inside of them, (see fig. 1.)

D D is a frame, shaped like-the letter V, with the ends thereof joining w w in the plows A A.

P Pis a bottom, which may be attached to this framewhen it is desired to convey the dirt any dis tance.

Figure 3 shows this bottom detached, and although this bottom is shown in place in fig. 2, we shall describe the machine as if the bottom were detached, as it is only intended to use the bottom occasionally when the dirt is to be removed to a distance.

On the bottom and inside of the frame D D D is a bar of iron or steel, Z Z, brought to an edge to correspond with the cutting edge of the plow-blade.

Strongly bolted on the frame D D D are two upright supports, S S, which pass up through two slots in the circular frame 0 C, (see fig. 1,) by the side of the cogged wheel M M, and on' the sides of these supports S S are cogged bars, which gear into M M, and by this means, when the wheels M M revolve, the frame D D D is raised or lowered, thereby bringing the plows in contact with the ground.

At the pointed end of the frame D D D is a rod, J, hooked into the frame D D D at one end, and the other on the end of a crooked lever, i, (see Figure 4,) which is a side view of my machine, and better shows this device.

The level-t comes up near the seat E, and by it the pointed end of the frame D D D can be raised or lowered, to point the plows into the earth, or to drop the dirt, which will pass under this frame,

R R are two lovers, constructed of bars of iron, and are bolted by eye-bolts to the platform YY, which is connected with the' circular frame 0 (l, and forms the bed or bottom of the machine.

These bars, at their onterends, are bent into the shape of a letter U, immediately in front of the cog ed bars on the supports S S, and when the levers R R are lifted up bring the crook' of the bars into the cogs on S S, and act as apawl or catch, and serve to keep the frame suspended at the height desired.

The operation of the machine is as follows, to wit: 1

The bevel gear-wheels K K are thrown out of gear with the wheels L L onthe hub of the wheels B B, by means of the lever 0, there being a lever O toeach wheel-shaft-K K. Now, by means of the same le- .vers and ratchcts N N, the wheelsM M, (see fig. 1,)

are revolved, thereby raising the supports S S, and, consequently, the frame D D D, to the desired height. Then, by the lever 1', the plows are pointed toward the earth, and, as the machine is drawn forward, the

plows enter the earth, while the bar Z Z, fig. 2, acts as a scraper. The dirt is thereby accumulated in the frame D D D, as itaccumnlates in a common scraper, and,- when it is desired to dump the dirt, the lever O is shoved out, thereby bringing the wheels"'KK into gear with L L, causing the wheels M M to revolve, thereby lifting the plows and frame D D D up from the earth, letting the accumulated dirt drop.

The levers RRare now operated, which keep the plows clear from the ground until it is again desired to lower them, when the levers R R are turned down, thereby releasing S S from the U-shaped catch, when, by operating the lever'O, the plows are again dropped and point-ed downward by the lever i, as described.

The bottom P P has a cutting edge like the bar Z Z, in front, and is hooked on the under side of D D D, thus forming a bottom to D D D, whereby the dirt can be conveyed any distance required, when it is unhooked and the dirt dumped.

It will be seen that, by this construction, either the right or left plow can be lowered into the earth at pleasure by the levers O, operated separately, and that when the dirt has accumulated-in the scraper-D D D, by throwing K K into gear with L L, the load of dirt is raised by the forward motion of the machine, and, by the power of the team, at the same time all' can be controlled byt-he hand-of the driver.

Figure 5 shows how the tongue of the machine can be shifted from right toleft.-

X is a cross-piece under the platform Y Y. Through the end of the tongue F are two mortises', or slots, 1 2. The cross-piece X passes through one, and the circular frame 0 G the other.

Inthe edge of the platform Y Y, and in the center thereof, is a notch at H; a lever, G, drops into this notch, one end of the lever-being attached to the piece, 4 5, and on this along staple, 'l, with a hook,

U, fig. 1; to this hook the double-tree is chained,

as the tongue is used either on the right or left-side;

by this construction the draft is directly. on the frame D D, and not on the tongue.

This scraperisintended for use on roads where, by

the construction described, a plow may be nsedin the ditch, and the other lifted entirely out of the ground. hat I claim as my invention, and desire to se cure by Letters Patent is as follows, to wit:

in a combined plow and scraper, the arrangement of the plow-frame and platform D D D, W W, and P, standards S S, bevel gearingK. L, wheels M M, catchlevers It R, lever 0', and rod J, carriage O, tongue F, and lever G, all constructed as and for the purpose set forth.

Witnesses:

A. B. RICHMOND, Ron Rmsmenn.

T. B. PARKER-.- 

